Ministers will press ahead with a review of net-zero amid fears key commitments will be watered down in a fresh drive for growth.
The Department of Business, Energy and Industrial Strategy said the review “will scrutinise green transition to make sure investment continues to boost economic growth and create jobs as well as increase energy security”.
It said the “target” - which is written into law - to reach net zero by 2050 “remains in place”.
But reports have suggested Liz Truss wants to tear up green laws inherited from the EU.
The RSPB is among groups that have hit out over plans to turbocharge development in "investment zones" across England.
Ms Truss has already kick-started a round of oil and gas well licences in the North Sea, allowed fracking to resume, and removed green levies on bills - while saying she would keep spending the money they raised.
The review will be led by former Energy Minister Chris Skidmore, who “will consider a range of evidence, consulting widely with consumers, investors, industrial leaders and experts in various fields including energy, land use and transport”, said BEIS.
It added: “He will report to the Government with a set of recommendations by the end of this year to help turbocharge our transition to net zero by identifying key economic opportunities.”
He said: “This review seeks to 'double down' on how we can ensure that our energy transition happens at the same time as maximising the economic opportunity for businesses and households across the country, providing huge opportunities for innovation, investment, exports and jobs.
"I want to ensure that net zero isn't just viewed as the right thing to do for our environment- but becomes an essential driver of economic growth.”
It came as Shadow Net Zero Secretary Ed Miliband blasted the Tories' record and announced a "target of zero-carbon power by 2030".
He told Labour conference: "They tell us that after 12 years in power, after all their promises, after all their hot air, after four Tory Prime Ministers.
"They say and I’m not making this up “the energy system is broken”. Friends, who broke the energy system? They did.
"Who banned onshore wind in England leading to higher gas imports and more expensive energy? They did.
"Who said cut the green crap and drove up bills? They did.
"Who cut home insulation to twenty times less than under Labour? They did.
"Who deregulated the energy market leaving 32 companies to go bust? They did.
"If you want to mend the broken energy system, I’ve got an idea: let’s start by getting rid of the Tories who broke it."
